Government urges caution in handling "dry ice" - Journal of Chemical

Government urges caution in handling "dry ice". J. Chem. Educ. , 1929, 6 (11), p 2018. DOI: 10.1021/ed006p2018.2. Publication Date: November 1929. Not...
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Government Urees - Caution in Handlinrr- "Dm- Ice." The number of claims which have been filed with the Ohio Industrial Commission for injuries received while using frozen carbon dioxide, or "dm ice," for industrial purposes, has caused the U. S. Gov. ernment t o issue a warning t o workers handling this product. The "dry ice" has recently come into extensive use far commercial purposes, especially in ice-cream and dairy plants. Its temperature is about 110 degrees below zero or 140 degrees below the temperature of ordinary ice. Although it lwks harmless enough i t can do considerable damage t o the person who handles it with bare hands. Numbness and pain, not only in the fingers hut also in the hands and arms, are the fist symptoms, and in some cases a form of neuritis is produced.-Science Service